Seiko Cal. 4487 - 765

The Seiko 4487-765 represents an important milestone in Seiko's 1973 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-453a982e4a7c]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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